*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.clearfix:after,
.clearfix:before{
    display: block;
    content: "";
    clear: both;
}
.one,.two,.three,.a1,.a2{
    float: left;
}
header{
    background: #e9ecef;
    text-align: center;
    padding-top: 67px;
    padding-bottom: 84px;
}
header h1{
    font-size: 60px;
    padding-bottom: 19px;
    font-weight: 100;
}
header h2{
    font-weight: 100;
    font-size: 20px;
}
section{
    padding-top: 32px;  }
.a{
    width: 1110px;
    margin: auto;
}
section .btn{
    padding:10px 44px 11px 44px;
    border: none;
    outline: none;
}

.active{
    background: #5aaaff;
    border-radius: 2px 0 0 2px;
    color: #fff;
}
section .button{
    padding: 11px 119px 11px 118px;
    border: none;
    margin-left: 173px;
    margin-right: 172px;
}
.button img{
    vertical-align: middle;
}
.b{
    padding-top: 16px;
}
.b textarea{
    width: 540px;
    height: 150px;
    border-radius: 2px;
    padding: 10px;
    font-size: 22px;
}
.a1{
    padding-right: 25px;
}
.a2 textarea{
    background: #e9ecef;
    color: #6c757d;
    outline: none;
}
.c{
    padding-top: 12px;
}
.c button{
    background: #007bff;
    color: #fff;
    padding: 16px 107px 13px 107px;
    border: none;
    border-radius: 2px;
}